Message5394

It's not just 1 line versus two.  For example, the first line of what you posted 
("print ...") is a statement whereas the second line is an expression.

Python is not set up to behave as you wish - there's a separate interactive 
grammar from the "batch" grammar, which requires extra returns, etc.  I suggest 
if you have a third-party script to define an entry point (such as a function 
name) you can call after evaluating the script in its entirety, then the return 
value will be explicit with "return".